The back side is lightly brushed for a warm and soft feel. The cotton is organic cotton. [Material] By lightly brushing only the back side of the fabric, we have created a clean surface that doesn't look like an inner layer, while also achieving a warm and gentle touch. It has stretch and is comfortable to wear. [Design] The slightly slim fit adheres to the body, keeping you warm. The high neck that follows the neck provides warmth and also adds an accent to layered necklines. I've worn it a few times, but there are no noticeable stains. However, it is a used item, so please refrain from purchasing if you are sensitive to this. Thank you for looking.